Tenagodus anguinus is a species of unusual sea snail, a marine gastropod mollusk in the family Siliquariidae, the slit worm shells. Description The shell is thick and irregularly coiled in a gradually tapered spiral, with rather distant whorls. It has longitudinal ridges with spines on them throughout its length. It is generally a dirty-looking white colour, pale yellow or buff. The uncoiled length could be up to . Distribution Tenagodus anguinus is found in the Indian Ocean including around Madagascar. References Born I. von (1780). Testacea Musei Caesarei Vindobonensis (...). Kraus, Vienna pp. XXXVI + 442 + 18 pl: page(s): 440 Dillwyn, L. W. 1817. A descriptive catalogue of Recent shells, arranged according to the Linnean method; with particular attention to the synonymy. London: John and Arthur Arch. Vol. 2:581-1092 + index [29 pp.]. page(s): 1079, 1080 Tryon, G. W. 1886. Naticidae, Calyptraeidae, Pyramidellidae. Manual of Conchology 8. Philadelphia. page(s): 256 Hartman, Olga 1959. Catalogue of the Polychaetous Annelids of the World. Parts 1 and 2. Occasional Papers of the Allan Hancock Foundation, 23: 628pp Higo, S., Callomon, P. & Goto, Y. (1999) Catalogue and Bibliography of the Marine Shell-Bearing Mollusca of Japan. Elle Scientific Publications, Yao, Japan, 749 pp Bieler R. 2004. Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca: Caenogastropoda: Siliquariidae). Zoological Journal of the Linnean Society, 140(3): 307-333. Fauchald, Kristian (2007). World Register of Polychaeta External links Bieler, R., 1992. Tenagodus or Siliquaria? Unravelling taxonomic confusion in marine "worm-snails" (Cerithioidea: Siliquariidae). The Nautilus, 106(1): 15-20 (27 February) Siliquariidae Gastropods described in 1758 Taxa named by Carl Linnaeus